<template>
    <ul class="app-header-nav">
        <li class="home"><RouterLink to="/">首页</RouterLink></li>
        <li v-for="item in list" :key="item.id" @mousemove="showCategory(item)" @mouseleave="hideCategory(item)">
            <RouterLink :to="`/category/${item.id}`" @click="hideCategory(item)">{{ item.name }}</RouterLink>
            <div class="layer" :class="{ open: item.open }">
                <ul>
                    <li v-for="sub in item.children" :key="sub.id">
                       <RouterLink :to="`/category/sub/${sub.id}`" @click="hideCategory(item)">
                           <img :src="sub.picture" alt="">
                           <p>{{ sub.name }}</p>
                       </RouterLink>
                    </li>
                </ul>
            </div>
        </li>
    </ul>
</template>

<script setup>
import { useCategoryStore } from "@/stores/modules/category"
import { ref, computed } from 'vue'


// 获取分类数据
const store = useCategoryStore()
const list = computed(() => {
    return store.categoryList
})

// 分类数据的显示
const showCategory = (item) => {
    store.show(item.id)
}

// 分类数据的隐藏
const hideCategory = (item) => {
    store.hide(item.id)
}
</script>

<style scoped lang="less">
@import "@/assets/styles/variables";
.app-header-nav {
    width: 820px;
    display: flex;
    justify-content: space-around;
    padding-left: 40px;
    position: relative;
    z-index: 998;
    > li {
        margin-right: 40px;
        width: 38px;
        text-align: center;
        > a {
            font-size: 16px;
            line-height: 32px;
            height: 32px;
            display: inline-block;
        }
        &:hover {
            > a {
                color: @xtxColor;
                border-bottom: 1px solid @xtxColor;
            }
            //> .layer {
            //    height: 132px;
            //    opacity: 1;
            //}
        }
    }
}
.layer {
    &.open {
        height: 132px;
        opacity: 1;
    }
    width: 1240px;
    background-color: #fff;
    position: absolute;
    left: -200px;
    top: 56px;
    height: 0;
    overflow: hidden;
    opacity: 0;
    box-shadow: 0 0 5px #ccc;
    transition: all .2s .1s;
    ul {
        display: flex;
        flex-wrap: wrap;
        padding: 0 70px;
        align-items: center;
        height: 132px;
        li {
            width: 110px;
            text-align: center;
            img {
                width: 60px;
                height: 60px;
            }
            p {
                padding-top: 10px;
            }
            &:hover {
                p {
                    color: @xtxColor;
                }
            }
        }
    }
}
</style>